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Sodium bismuth titanate-based high-entropy energy storage ceramic material and preparation method thereof
The invention provides a sodium bismuth titanate-based high-entropy energy storage ceramic material and a preparation method thereof, and belongs to the technical field of dielectric functional ceramic materials. The high-entropy energy storage ceramic material provided by the invention takes Bi0. 5Na0. 5TiO3 as a base, six elements of Bi, Na, Ba, La, Sr and K are designed at the A site of the high-entropy energy storage ceramic material, Ba < 2 + > and La < 3 + > ion doping is beneficial to reducing the sintering temperature and reducing the grain size, Sr < 2 + > ion doping can enhance the dielectric relaxation characteristic, K < + > ion doping is beneficial to further destroying a long-range ordered structure and forming a polar nano micro-region (PNRs) structure, and the dielectric relaxation characteristic can be further improved. Therefore, the material obtains the comprehensive performance of low residual polarization, high breakdown field strength and a slender P-E ferroelectric hysteresis loop, and the energy storage performance of the material is further improved.
本发明提供了一种钛酸铋钠基高熵储能陶瓷材料及其制备方法，属于电介质功能陶瓷材料技术领域。本发明提供的高熵储能陶瓷材料以Bi0.5Na0.5TiO3为基，在其A位设计Bi、Na、Ba、La、Sr和K六种元素，其中Ba2+，La3+离子掺杂有利于降低烧结温度，减小晶粒尺寸，Sr2+离子掺杂能过增强介电弛豫特性，K+离子掺杂有助于进一步破坏长程有序结构，形成极性纳米微区(PNRs)结构，从而使得材料获得低剩余极化、高击穿场强和细长P‑E电滞回线的综合性能，进而提高了材料的储能性能。
Sodium bismuth titanate-based high-entropy energy storage ceramic material and preparation method thereof
The invention provides a sodium bismuth titanate-based high-entropy energy storage ceramic material and a preparation method thereof, and belongs to the technical field of dielectric functional ceramic materials. The high-entropy energy storage ceramic material provided by the invention takes Bi0. 5Na0. 5TiO3 as a base, six elements of Bi, Na, Ba, La, Sr and K are designed at the A site of the high-entropy energy storage ceramic material, Ba < 2 + > and La < 3 + > ion doping is beneficial to reducing the sintering temperature and reducing the grain size, Sr < 2 + > ion doping can enhance the dielectric relaxation characteristic, K < + > ion doping is beneficial to further destroying a long-range ordered structure and forming a polar nano micro-region (PNRs) structure, and the dielectric relaxation characteristic can be further improved. Therefore, the material obtains the comprehensive performance of low residual polarization, high breakdown field strength and a slender P-E ferroelectric hysteresis loop, and the energy storage performance of the material is further improved.
本发明提供了一种钛酸铋钠基高熵储能陶瓷材料及其制备方法，属于电介质功能陶瓷材料技术领域。本发明提供的高熵储能陶瓷材料以Bi0.5Na0.5TiO3为基，在其A位设计Bi、Na、Ba、La、Sr和K六种元素，其中Ba2+，La3+离子掺杂有利于降低烧结温度，减小晶粒尺寸，Sr2+离子掺杂能过增强介电弛豫特性，K+离子掺杂有助于进一步破坏长程有序结构，形成极性纳米微区(PNRs)结构，从而使得材料获得低剩余极化、高击穿场强和细长P‑E电滞回线的综合性能，进而提高了材料的储能性能。
Sodium bismuth titanate-based high-entropy energy storage ceramic material and preparation method thereof
一种钛酸铋钠基高熵储能陶瓷材料及其制备方法
MAO PU (Autor:in) / GUO YONGGUANG (Autor:in) / LI WANJIN (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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Sodium bismuth titanate-based dielectric energy storage ceramic and preparation method thereof
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